2004 V70 2.5T. <p>Recently the doors have refused to lock, but only on occasion. Using the key fob gets no results (either of the two), and if I depress the door lock key inside the car the locks go down and pop right back up. All doors are closed tightly. Then shortly after the problem resolves and the car can be locked. Can't seem to figure out what cures the problem.<p>Am I overlooking something obvious that would cause this? Or do we have some sort of electronic glitch?